crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application

A flaw was found in the crypto/x509 package within Go golang. When verifying a certificate chain, excluded DNS Domain Name System constraints are not correctly applied to wildcard DNS Subject Alternative Names SANs if the case of the SAN differs from the constraint. This oversight could allow an...

crypto/x509: Incorrect enforcement of email constraints in crypto/x509

A certificate validation flaw has been discovered in the golang crypto/x509 module. When verifying a certificate chain which contains a certificate containing multiple email address constraints which share common local portions but different domain portions, these constraints will not be properly...

CVE-2026-105794

MsQuic is a cross-platform C implementation of the IETF QUIC protocol exposed to C, C++, C, and Rust. Prior to 2.4.20, 2.5.11, and 2.6.1, MsQuic clients using the OpenSSL or QuicTLS TLS backend do not properly verify that a server certificate matches the intended target server hostname. An on-pat...

EUVD-2026-93458

Dell Container Storage Modules CSM versions prior to 1.18.0, contains an Improper Certificate Validation vulnerability in the proxy-server component. An unauthenticated adjacent network attacker could potentially exploit this vulnerability, leading to information exposure of storage backend...

CVE-2026-67270

Dell Container Storage Modules (CSM) versions prior to 1.18.0 are affected by an Improper Certificate Validation vulnerability within the proxy-server component. An unauthenticated attacker located on an adjacent network could exploit this flaw to cause information exposure of storage backend adm...

CVE-2026-67270

Dell Container Storage Modules CSM versions prior to 1.18.0, contains an Improper Certificate Validation vulnerability in the proxy-server component. An unauthenticated adjacent network attacker could potentially exploit this vulnerability, leading to information exposure of storage backend...

EUVD-2026-93422

MsQuic is a cross-platform C implementation of the IETF QUIC protocol exposed to C, C++, C, and Rust. Prior to 2.4.20, 2.5.11, and 2.6.1, MsQuic clients using the OpenSSL or QuicTLS TLS backend do not properly verify that a server certificate matches the intended target server hostname. An on-pat...

CVE-2026-105794 MsQuic: Improper Certificate Validation in Microsoft.Native.Quic.MsQuic.OpenSSL

MsQuic is a cross-platform C implementation of the IETF QUIC protocol exposed to C, C++, C, and Rust. Prior to 2.4.20, 2.5.11, and 2.6.1, MsQuic clients using the OpenSSL or QuicTLS TLS backend do not properly verify that a server certificate matches the intended target server hostname. An on-pat...

CVE-2026-105794

MsQuic , a cross-platform C implementation of the IETF QUIC protocol, contains an improper certificate validation vulnerability (CWE-295) in versions prior to 2.4.20, 2.5.11, and 2.6.1 . When using the OpenSSL or QuicTLS TLS backends, the software fails to verify that a server certificate matches...

CVE-2026-105794 MsQuic: Improper Certificate Validation in Microsoft.Native.Quic.MsQuic.OpenSSL

MsQuic is a cross-platform C implementation of the IETF QUIC protocol exposed to C, C++, C, and Rust. Prior to 2.4.20, 2.5.11, and 2.6.1, MsQuic clients using the OpenSSL or QuicTLS TLS backend do not properly verify that a server certificate matches the intended target server hostname. An on-pat...

K000163564: Curl vulnerabilities CVE-2025-13034 and CVE-2025-10966

Security Advisory Description CVE-2025-13034 When using CURLOPTPINNEDPUBLICKEY option with libcurl or --pinnedpubkey with the curl tool, curl should check the public key of the server certificate to verify the peer. This check was skipped in a certain condition that would then make curl allow the...

CVE-2026-105221

A flaw was found in gist. The utility completely disables Transport Layer Security TLS certificate verification when establishing HTTPS connections. An on-path attacker can exploit this flaw by presenting an arbitrary certificate to intercept, read, and manipulate network traffic. This can lead t...

DEBIAN-CVE-2026-104038

A flaw was found in sssd. A remote attacker can cause a denial of service DoS by submitting a certificate that lacks an expected Security Identifier SID extension. In deployments configured with SID-based certificate mapping rules, the service fails to verify the presence of the extension before...

CVE-2026-104038

A flaw was found in sssd. A remote attacker can cause a denial of service DoS by submitting a certificate that lacks an expected Security Identifier SID extension. In deployments configured with SID-based certificate mapping rules, the service fails to verify the presence of the extension before...

CVE-2026-104038

A flaw was found in sssd. A remote attacker can cause a denial of service DoS by submitting a certificate that lacks an expected Security Identifier SID extension. In deployments configured with SID-based certificate mapping rules, the service fails to verify the presence of the extension before...

UBUNTU-CVE-2026-104038

A flaw was found in sssd. A remote attacker can cause a denial of service DoS by submitting a certificate that lacks an expected Security Identifier SID extension. In deployments configured with SID-based certificate mapping rules, the service fails to verify the presence of the extension before...

Security Bulletin: The following vulnerabilities that can affect IBM Storage Scale Install Toolkit are now fixed in 5.2.3.9 or higher and 6.0.1.1 or higher

Summary The following vulnerabilities that can affect IBM Storage Scale Install Toolkit are now fixed in 5.2.3.9 or higher and 6.0.1.1 or higher Vulnerability Details CVEID:CVE-2026-14375 DESCRIPTION: IBM Storage Scale does not validate or improperly validates TLS certificate validation when...

CLEANSTART-2026-FO00940 When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those permissions were silently discarded, potentially dropping certificate restrictions such as fo...

CVE-2026-39828 affects multiple packages. When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those permissions were silently discarded, potentially dropping certificate restrictions such as force-command after a second factor succeeded. See reference...

CLEANSTART-2026-NA69133 Certificate verification can panic when a certificate in the chain has an empty DNS name and another certificate in the chain has excluded name constraints

Security vulnerability affects the temporal-server package. Certificate verification can panic when a certificate in the chain has an empty DNS name and another certificate in the chain has excluded name constraints...

CLEANSTART-2026-PF50810 When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint

Security vulnerability affects the temporal-server package. When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint...